Time is passing, and there are a lot of materials on the operating tables on both sides. Each material needs to be carefully proportioned so as not to cause damage to the spirit plant.

Dong Yongyuan and Wen Zixin exchanged monitoring, this kind of long-term use of qi was actually very tiring for cultivators.

For any spirit plant, the ratio of nutrient solution is the top priority, which is the basis for the healthy growth of spirit plants.

The nutrient solution of a spirit plant is not fixed, and the phase properties of many materials are very close, but the collocation will be very different, and even cause changes in the spirit plant. For example, the moonlight rose that Jiutian transformed for Zhengcheng University at the beginning, according to the different nutrient solutions, caused different spiritual energy releases.

The knowledge involved can be described as complex.

Now, for example, an hour and forty minutes have passed, and the nutrient solution has been proportioned twice. The difference is that in the test tube on Chen Guangyuan's side, the nutrient solution is royal blue, and under the slight shaking, there seem to be waves, and you can feel a very rich aura of water.

On the other hand, on the Jiutian side, the nutrient solution in the test tube is orange, and there are tiny bubbles rising in the liquid from time to time, as if the whole thing is about to boil.

"Are you crazy? This is an aquatic spirit plant, why is your nutrient solution fire aura so heavy?" Cheng Deyi looked at the other side with neurotic eyes. In his perception, it seemed as if a large fireball was stuffed into the test tube of the nutrient solution. He felt that if this test tube was thrown on a person's face, it would directly burn the person and disfigure.

"Take care of yourself!" Wen Zixin glared at Cheng Deyi.

Seeing that the two sides were about to go to war again, Guan Chengxuan immediately patted the table and said, "Since both sides are almost there, it's better to start." I used the nutrient solution directly before the test, and I was able to get some of the data during the test. ”

The instrument that Guan Chengxuan took out was different from the testing instrument that he took out when he was conducting the junior spiritual planter assessment in the Spirit Plant Association in Jiutian. This head is bigger, there are several displays, and there are a lot more buttons.

"This is the latest generation of Gaofeng testers, right? Chen Guangyuan was very knowledgeable and glanced at it enviously.

"Of course, this guy is in the millions...... Okay, which of you comes first?" Guan Chengxuan smiled.

"Let's go first. Cheng Deyi was very confident in the nutrient solution that was proportioned, and dropped two drops into the water basin, and the royal blue liquid spread rapidly, and the water body was also impregnated with a faint blue.

The blue water jade that had been dripping into the nutrient solution was put into the instrument, and then Guan Chengxuan activated the instrument and pressed some switches. The whole instrument buzzed slightly.

The instrument is not completely sealed, and the outside is a glass door, so you can clearly see the state of the spirit plant inside. According to Guan Chengxuan's introduction, this new generation of detector is equipped with a light instrument that can accelerate the absorption of nutrient solution.

Didi!

The device is in operation, and the number on the screen showing the vital activity is currently 49.2. Within seconds, the number began to grow and became 49.3...... 49.4...... 50.2......

Taking advantage of the gap in testing, Guan Chengxuan looked at the nutrient solution they had prepared, dropped a drop on his fingertips, then sniffed lightly, and said with a smile: "It's a very reasonable ratio, the technique is also skillful, and the seed sand crystal powder is very delicate and almost untouchable." It's almost the same recipe as I came up here. ”

Cheng Deyi and the others heard Guan Chengxuan's praise, and immediately showed smug looks one by one, the ratio of this nutrient solution was completed by them themselves, and Chen Guangyuan was just a guide.

"What a smug fart!" Dong Yongyuan sneered, then raised the nutrient solution test tube in his hand and said, "You don't know anything about power!"

"Are you sure it's not the nutrient solution of the Xinghuo Orchid?" the boy next to Cheng Deyi sneered, "I don't know if the cooked blue water jade is delicious." Otherwise, I'll buy some soy sauce and vinegar, and I'll be able to get a dipping sauce later. ”

Jiutian stopped Wen Zixin's meaningless verbal behavior, and let the facts speak.

After about fifteen minutes, the instrument makes a dripping sound, indicating that the test has been completed. The blue water jade inside has climbed to 81.3 at this moment. The whole blue water jade presents a crystal appearance, as if it is a bamboo made of sapphire, which is very beautiful.

"It's your turn. Guan Chengxuan looked at Wen Zixin and the others, and then his eyes fell on the nutrient solution. He frowned, the perception of the senior spirit planter was even keen, and he could feel the aura attribute of the person contained in the nutrient solution that was completely compatible with the blue water jade. With just one drop, the entire Blue Water Jade can be completely destroyed.

But Guan Chengxuan felt that things were not so simple.

I can't figure it out, I can't figure it out!" Guan Chengxuan shook his head, and simply didn't think about it, and directly started testing. Wen Zixin dropped two drops of the nutrient solution into the water basin, and then put the blue water jade into the Dao testing instrument.

The screen shows 47.8 life active.

Didi!

In just two or three seconds, the numbers on the screen suddenly changed dramatically.

It's not growth, it's down! from 47.8 to 37.2! Life activity has dropped by as much as 10.6. The appearance of the entire blue water jade also looks a little withered and becomes slightly yellowish.

Cheng Deyi and the others suddenly burst out laughing, and they all looked at Jiutian and the others gloatingly.

Wen Zixin and Dong Yongyuan pretended to be calm, and turned their faces aside with disdain. Although they knew that this would happen with the nutrient solution of this formula, the real emotions of the two were still a little flustered. After all, the efficacy of this nutrient solution is only a theoretical thing, and there is no time or material to verify it, it is basically the formula provided by Jiutian, and the two people are just operators.

But Jiutian was really calm, and he didn't blink his eyes.

In the blink of an eye, only 7.3 remained. Looking inside from the outside, the blue water jade has taken on a charred black color, and is in a state of near death, the roots under the water have completely shrunk and become entangled, and some of them have completely fallen off and are floating on the water.

Only five minutes had passed.

Guan Chengxuan shook his head, feeling that the outcome of this competition had been decided. He had thought that Nine Days might have a backhand, but then he imagined that he felt that he might have overestimated the young man. In his twenties, younger than some of his students, it was not at all surprising that he would commit something inexperienced.

However, this thought only passed through my head for a moment, and the situation in the detector changed drastically.

Click~

The blackened blue jade suddenly made a sound like an eggshell shattering, the sound was very soft, but it was obvious. Some clearly visible cracks emerge on the charred skin.

Everyone's eyes were focused on the inside of the detector, and a small piece of pitch-black skin peeled off, revealing a little orange hue.

"What is this?" Cheng Deyi said in astonishment.